E I E I O (print)

ld MacDonald had a farm, E I E I O
And on this farm he had some pigs, E I E I O
With a hack hack here, and a chop chop there,
Here a shriek, there a scream
Everywhere the blood streams...                                          
Old MacDonald had a farm, E I E I O

In rural Georgia in 1948, a man was lucky to get any kind of work. Which was why Cletus Pink felt he'd been blessed when an old farmer named MacDonald offered him a job. But what was making the horrific sounds coming from the main house?
Worse, why was there always fresh blood oozing out from underneath the kitchen's back door?